Vulnerability Description
A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 90.0 |
| Mozilla | Firefox Esr | < 78.12 |
| Mozilla | Thunderbird | < 78.12 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1709976ExploitIssue TrackingVendor Advisory
- https://security.gentoo.org/glsa/202202-03Third Party Advisory
- https://security.gentoo.org/glsa/202208-14Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-28/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-30/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1709976ExploitIssue TrackingVendor Advisory
- https://security.gentoo.org/glsa/202202-03Third Party Advisory
- https://security.gentoo.org/glsa/202208-14Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-28/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-30/Vendor Advisory
FAQ
What is CVE-2021-29970?
CVE-2021-29970 is a vulnerability with a CVSS score of 8.8 (HIGH). A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerabilit...
How severe is CVE-2021-29970?
CVE-2021-29970 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29970?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.